2 files changed, 171 insertions, 0 deletions

diff --git a/firmware/target/sh/archos/recorder/button-recorder.c b/firmware/target/sh/archos/recorder/button-recorder.c
new file mode 100755
index 0000000000..dc43cce0e0
--- /dev/null
+++ b/firmware/target/sh/archos/recorder/button-recorder.c
@@ -0,0 +1,108 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Jens Arnold
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "system.h"
+#include "button.h"
+#include "backlight.h"
+#include "adc.h"
+
+/*
+ Recorder hardware button hookup
+ ===============================
+
+ F1, F2, F3, UP:           connected to AN4 through a resistor network
+ DOWN, PLAY, LEFT, RIGHT:  likewise connected to AN5
+
+ The voltage on AN4/ AN5 depends on which keys (or key combo) is pressed
+
+ ON:     PB8, low active
+ OFF:    PB4, low active
+*/
+
+void button_init_device(void)
+{
+    /* Set PB4 and PB8 as input pins */
+    PBCR1 &= 0xfffc;  /* PB8MD = 00 */
+    PBCR2 &= 0xfcff;  /* PB4MD = 00 */
+    PBIOR &= ~0x0110; /* Inputs */
+}
+
+int button_read_device(void)
+{
+    int btn = BUTTON_NONE;
+    int data;
+    static int off_button_count = 0;
+
+    /* check F1..F3 and UP */
+    data = adc_read(ADC_BUTTON_ROW1);
+    if (data >= 250)
+    {
+        if (data >= 700)
+            if (data >= 900)
+                btn = BUTTON_F3;
+            else
+                btn = BUTTON_UP;
+        else
+            if (data >= 500)
+                btn = BUTTON_F2;
+            else
+                btn = BUTTON_F1;
+    }
+
+    /* Some units have mushy keypads, so pressing UP also activates
+       the Left/Right buttons. Let's combat that by skipping the AN5
+       checks when UP is pressed. */
+    if(!(btn & BUTTON_UP))
+    {
+        /* check DOWN, PLAY, LEFT, RIGHT */
+        data = adc_read(ADC_BUTTON_ROW2);
+        if (data >= 250)
+        {
+            if (data >= 700)
+                if (data >= 900)
+                    btn |= BUTTON_DOWN;
+                else
+                    btn |= BUTTON_PLAY;
+            else
+                if (data >= 500)
+                    btn |= BUTTON_LEFT;
+                else
+                    btn |= BUTTON_RIGHT;
+        }
+    }
+
+    /* check port B pins for ON and OFF */
+    data = PBDR;
+    if ((data & 0x0100) == 0)
+        btn |= BUTTON_ON;
+
+    if ((data & 0x0010) == 0)
+    {
+        /* When the batteries are low, the low-battery shutdown logic causes
+         * spurious OFF events due to voltage fluctuation on some units.
+         * Only accept OFF when read several times in sequence. */
+        if (++off_button_count > 3)
+            btn |= BUTTON_OFF;
+    }
+    else
+        off_button_count = 0;
+        
+    return btn;
+}
diff --git a/firmware/target/sh/archos/recorder/button-target.h b/firmware/target/sh/archos/recorder/button-target.h
new file mode 100755
index 0000000000..77665c0ad5
--- /dev/null
+++ b/firmware/target/sh/archos/recorder/button-target.h
@@ -0,0 +1,63 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Jens Arnold
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _BUTTON_TARGET_H_
+#define _BUTTON_TARGET_H_
+
+#include <stdbool.h>
+#include "config.h"
+
+#define HAS_SERIAL_REMOTE
+
+void button_init_device(void);
+int button_read_device(void);
+
+      /* Main unit's buttons */
+#define BUTTON_ON           0x00000001
+#define BUTTON_OFF          0x00000002
+
+#define BUTTON_LEFT         0x00000004
+#define BUTTON_RIGHT        0x00000008
+#define BUTTON_UP           0x00000010
+#define BUTTON_DOWN         0x00000020
+
+#define BUTTON_PLAY         0x00000040
+
+#define BUTTON_F1           0x00000080
+#define BUTTON_F2           0x00000100
+#define BUTTON_F3           0x00000200
+
+#define BUTTON_MAIN (BUTTON_ON|BUTTON_OFF|BUTTON_LEFT|BUTTON_RIGHT\
+                |BUTTON_UP|BUTTON_DOWN|BUTTON_PLAY\
+                |BUTTON_F1|BUTTON_F2|BUTTON_F3)
+                
+    /* Remote control's buttons */
+#define BUTTON_RC_PLAY      0x00100000
+#define BUTTON_RC_STOP      0x00080000
+
+#define BUTTON_RC_LEFT      0x00040000
+#define BUTTON_RC_RIGHT     0x00020000
+#define BUTTON_RC_VOL_UP    0x00010000
+#define BUTTON_RC_VOL_DOWN  0x00008000
+
+#define BUTTON_REMOTE (BUTTON_RC_PLAY|BUTTON_RC_STOP\
+                |BUTTON_RC_LEFT|BUTTON_RC_RIGHT\
+                |BUTTON_RC_VOL_UP|BUTTON_RC_VOL_DOWN)
+
+#endif /* _BUTTON_TARGET_H_ */